L6599
High-voltage resonant controller
Features
■
■
■
■
■
■
■
■
■
■
50% duty cycle, variable frequency control of
resonant half-bridge
High-accuracy oscillator
Up to 500kHz operating frequency
Two-level OCP: frequency-shift and latched
shutdown
Interface with PFC controller
Latched disable input
Burst-mode operation at light load
Input for power-ON/OFF sequencing or
brownout protection
Non-linear soft-start for monotonic output
voltage rise
600V-rail compatible high-side gate driver with
integrated bootstrap diode and high dV/dt
immunity
-300/800mA high-side and low-side gate
drivers with UVLO pull-down
DIP-16, SO-16N packages
■
■
■
■
DIP-16
SO-16N
Order code
Part number
L6599D
L6599TR
L6599N
Package
SO-16N
SO-16N
DIP-16
Packaging
Tube
Tape and reel
Tube
Applications
LCD & PDP TV
Desktop PC, entry-level server
Telecom SMPS
AC-DC adapter, open frame SMPS
■
■
Block diagram
Vcc
DIS
8
1.85V
STBY
5
1.25V
-
+
Ifmin
+
RFmin
4
-
ISEN_DIS
H.V.
16
15
14
OUT
DRIVING
LOGIC
LEVEL
SHIFTER
L DRIVER
VG
Vs
11
10
Q S
R
UVLO
DISABLE
+
-
UVLO
12
DIS
V
BOOT
HVG
S Q
R
UV
17V DETECTION
UVLO
SYNCHRONOUS
BOOTSTRAP DIODE
HVG
DRIVER
C
BOOT
STANDBY
LC TANK
CIRCUIT
2V
DEAD
TIME
L
VG
+
-
+
-
1.5V
6
0.8V
9
LINE_OK
ISEN_DIS
DIS
STANDBY
GND
ISEN
Css
1
CONTROL
LOGIC
6.3V
1.25V
15
µA
2
DELAY
7
LINE
-
+
PFC_STOP
CF
3
VCO
May 2006
Rev 1
1/36
36
STMICROELECTRONICS [ STMICROELECTRONICS ]
